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WALTER Micro Drill Bit: 0.99 mm, 118° 2-Facet Point - Cobalt Micro Drill Bits
WALTERCobalt Micro Drill Bits

WALTER Micro Drill Bit: 0.99 mm, 118° 2-Facet Point

The WALTER Micro Drill Bit (SKU 440R14, MPN A3143-0.99) is a 0.99 mm cobalt micro drill bit with a 118° 2-facet point and regular spiral flute design. Manufactured by WALTER, this tool is designed for precision…

SKU 3G-OTH-195076

Brand
WALTER
Item
Micro Drill Bit: 0.99 mm, 118° 2-Facet Point
Category
Cobalt Micro Drill Bits
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Technical Specifications

WALTER
Manufacturer Part Number
A3143-0.99
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WALTER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WALTER Micro Drill Bit (SKU 440R14, MPN A3143-0.99) is a 0.99 mm cobalt micro drill bit with a 118° 2-facet point and regular spiral flute design. Manufactured by WALTER, this tool is designed for precision drilling applications requiring a 0.0390 inch diameter.

Frequently Asked Questions

What is the WALTER Micro Drill Bit A3143-0.99 used for?

The WALTER Micro Drill Bit A3143-0.99 is used for precision drilling in industrial applications requiring a 0.99 mm (0.0390 inch) diameter hole. Its 118° 2-facet point and cobalt construction suit it for machining hard materials like stainless steel and tool steels in mold, die, and aerospace work.

What are the specifications of the WALTER Micro Drill Bit A3143-0.99?

The WALTER Micro Drill Bit A3143-0.99 has a 0.99 mm diameter (0.0390 inch), a 118° 2-facet point, and a regular spiral flute design. It is made from cobalt, providing heat resistance and durability for precision drilling in demanding materials. The manufacturer part number is A3143-0.99.

Where to buy the WALTER Micro Drill Bit A3143-0.99 worldwide?

3G Electric supplies the WALTER Micro Drill Bit A3143-0.99 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this precision cobalt micro drill bit.

How to select the right WALTER micro drill bit for my application?

To select the right WALTER micro drill bit, match the diameter (e.g., 0.99 mm for the A3143-0.99) to your hole size, and choose point geometry (118° 2-facet for general purpose) and flute type (regular spiral for standard materials). Cobalt bits suit harder workpieces. Consult WALTER's technical data for feed and speed recommendations.

Used in

Common applications for WALTER
Automotive engine block machining — WALTER WNMG542-MM5 WSM20S turning inserts for cylinder bore finishing
Aerospace aluminum component turning — WALTER CCMT060208-FK6 WKK10S diamond inserts for high-speed finishing
General engineering cutoff operations — WALTER GX24-3E400N04-UA4 WKP33S parting inserts for steel bars
Mold and die steel grooving — WALTER GX16-2E300R6-CF5 WSM33S inserts for deep groove roughing
CNC lathe shallow hole drilling — WALTER A1148-1/16IN cobalt screw-machine drill bits for oil-hole drilling
Heavy equipment shaft turning — WALTER SCMT120408-RM4 square inserts for roughing of alloy steels

WALTER Products

3G Electric supplies WALTER cobalt micro drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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WALTER Micro Drill Bit: 0.92 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.92). Key specifications — attr1235721: WALTER; attr1235722: 0.0362; attr1264838: Regular Spiral.
WALTER Micro Drill Bit: 0.88 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.88). Key specifications — attr1235721: WALTER; attr1235722: 0.0347; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.96 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.96). Key specifications — attr1235721: WALTER; attr1235722: 0.0378; attr1264838: Regular Spiral.

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WALTER Micro Drill Bit: 0.97 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.97). Key specifications — attr1235721: WALTER; attr1235722: 0.0382; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.05 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.05). Key specifications — attr1235721: WALTER; attr1235722: 0.0020; attr1264838: Regular Spiral.
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WALTER Micro Drill Bit: 0.62 mm, 118° 2-Facet Point, Cobalt (MPN A3143-0.62). Key specifications — attr1235721: WALTER; attr1235722: 0.0244; attr1264838: Regular Spiral.
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